Finding the Fourth Proportional to 139,374.14, 192,326.58 and 77,284.08
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Solution
The fourth proportional to 139,374.14, 192,326.58 and 77,284.08 is: 106,646.64
Step by Step Solution
- Step 1: Write the proportion equation
139,374.14 : 192,326.58 = 77,284.08 : x - Step 2: Convert to fraction form
139,374.14/192,326.58 = 77,284.08/x - Step 3: Cross multiply
139,374.14x = 192,326.58 × 77,284.08 - Step 4: Simplify right side
139,374.14x = 14,863,782,794.85 - Step 5: Solve for x
x = 14,863,782,794.85/139,374.14 - Step 6: Final answer
x = 106,646.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.